Soulstealer Swain concept art

I've been wanting to get a Soulstealer Swain for some time now, I've made a concept for it.

First try at concept art.

Seems like I'm having trouble with the colors here, can't quite find a color that fits the Soulstealer skin line and that doesn't make him look like he's wearing a pajama. lol. If anyone has an idea/suggestion feel free to let me know.

https://cdn.discordapp.com/attachments/488859384357715983/648556267836801034/SoulStealer_Swayn_bw.PNG (black lines)

https://cdn.discordapp.com/attachments/488859384357715983/648556280113397770/SoulStealer_Swayn_colors.PNG (full color)

https://cdn.discordapp.com/attachments/488859384357715983/648558542067859466/unknown.png (blank shirt)

Good gaming.